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Re: LDAP performance slow intermittently

To: openldap-software@openldap.org
Subject: Re: LDAP performance slow intermittently
From: "Dieter Kluenter" <dieter@dkluenter.de>
Date: Thu, 20 May 2010 16:55:56 +0200
In-reply-to: <AANLkTinmb8pUEjVTqLehUujsO8g8B8jVX3Nae3qsYRqr@mail.gmail.com> (Khoa Nguyen's message of "Wed, 19 May 2010 17:42:37 -0400")
References: <AANLkTinmb8pUEjVTqLehUujsO8g8B8jVX3Nae3qsYRqr@mail.gmail.com>
User-agent: Gnus/5.1008 (Gnus v5.10.8) XEmacs/21.5-b29 (linux)

Khoa Nguyen <khoa.coffee@gmail.com> writes:

> My LDAP server (version 2.3.43) performance is quite erratic; for a few
> minutes, search operations are lightning fast, and then it slows down to
> several seconds for a single search, and then it is fast again, etc.
>
> I am not sure how to troubleshoot/determine the root cause of this
> intermittent problem. Any suggestions are appreciated.

It is hard to tell, but from my experience there are four or five main
reasons:
- insufficient memory,
- inadequate file system, 
- lack of appropriate indexes,
- transaction logs, database and syslog on the same disk,
- network failures,
- misconfigured clients.

-Dieter

-- 
Dieter Klünter | Systemberatung
sip: +49.40.20932173
http://www.dpunkt.de/buecher/2104.html
GPG Key ID:8EF7B6C6

References:
- LDAP performance slow intermittently
  - From: Khoa Nguyen <khoa.coffee@gmail.com>

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